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larisa86 [58]
4 years ago
10

"what percentage of radiation exposure is a result of man made sources"

Biology
1 answer:
irinina [24]4 years ago
6 0

Globally, man made radiation takes up 21 percent of all radiation.

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Compare and contrast the life of a star that has a mass the of a star that has a mass similar to our Sun with the life of a star
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Helloyo!


Massive Star

They are typically greater then 8 molar masses. They typically have a quick main sequence phase, a short red supergiant phase and a death of a spectacular Cosmic event: Supernova. From there they can either become Neutron Stars or Black Holes

Medium-Sized Star

They usually have a Normal Main Sequence phase (Billions of years). From there they bevome Red Giants and expell their mass in a planetary nebula. From there they shrink and become white dwarfs first, then black dwarfs.


Hope it helps ya




...though astronomy is actually physics btw...
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